Sorting numbers is a component of the combination puzzle game Sudoku, which uses logic.
The game's exceedingly simple rules simply call for players to fill in the numbers from 1 to 9 in the appropriate spaces while following the stated restrictions. A little square in the grid is proportionally assigned to a row, a column, and a 3x3 block. As a result, a digit must satisfy all three criteria in order to fill in the empty space: it must be the only digit in the row, column, and block.
Has a 9x9 grid, where little squares combine to generate larger squares. Nine small squares combine to form a 3x3 square, and so on, until nine squares remain, which combine to form the enormous square.
Each flat row must have all nine digits (from 1 to 9); the numbers do not have to be in the correct order.
Each column of a vertical row must have nine digits.
There are nine 3x3 square blocks overall, and each block must have nine different digits.